Features:brand new and high qualityEasy to Operate: Simply connect your speaker/headset with our device, immediately transform your speaker/headset into a fashionable wireless Bluetooth5.0-compatible speaker/headset.Extendable Cable: you can extend the cable to the length you want, more convenient.for home stereos / speaker, car stereos, headphones that is with 3.5mm audio input.Built-in microphone for calls, listening to songs, navigation, video and voice, stable and not laggingMetal interface, stable transmission, durable Specifications:Bluetooth-compatible Version: 5.0Transmission Range: Up to 10m / 33ftI/O: 3.5mm Female Plug, Mini USB Female PortPower Supply: for DC 5VSIze: Mixed Note:Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand.Please allow 0-1cm error due to the manual measurment. Package includes:1 x Bluetooth-compatible 5.0 Audio Transmitter/Receiver